Activities of everyday life with high spinal loads.
Activities of everyday life with high spinal loads.
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DOI：
10.1371/journal.pone.0098510
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发表时间：
2014
期刊：
影响因子：
3.7
通讯作者：
Bergmann G
中科院分区：
文献类型：
--
作者：
Rohlmann A;Pohl D;Bender A;Graichen F;Dymke J;Schmidt H;Bergmann G
有背部问题的患者应避免高脊柱负荷的活动。了解这些活动和相关载荷的知识对于脊柱植入物的正确设计和临床前测试非常重要。在术后长达65个月的时间内，对5名患者的约1000个活动和参数组合进行了遥测，测量了内固定椎体置换物上的载荷。在包含超过13，500个数据集中载荷分量极值的数据库中检索了在解剖学方向上引起最高合力、弯矩、扭矩或剪切力的10种活动。以下活动引起高合力：从地面举起重物，手握重物直臂前举，悬挂双臂在身体前方横向移动重物，改变身体位置，楼梯行走，系鞋和上身屈曲。所有的活动都有一个共同点，即上半身的质心向前移动。对这些日常生活活动测量了高达1650 N的力。然而，根据如何进行锻炼，各种活动的植入物载荷存在很大的个体内和个体间差异。测量的剪切力通常在后向高于前向。具有高合力的活动通常会导致其他载荷分量的高值。
Activities with high spinal loads should be avoided by patients with back problems. Awareness about these activities and knowledge of the associated loads are important for the proper design and pre-clinical testing of spinal implants. The loads on an instrumented vertebral body replacement have been telemetrically measured for approximately 1000 combinations of activities and parameters in 5 patients over a period up to 65 months postoperatively. A database containing, among others, extreme values for load components in more than 13,500 datasets was searched for 10 activities that cause the highest resultant force, bending moment, torsional moment, or shear force in an anatomical direction. The following activities caused high resultant forces: lifting a weight from the ground, forward elevation of straight arms with a weight in hands, moving a weight laterally in front of the body with hanging arms, changing the body position, staircase walking, tying shoes, and upper body flexion. All activities have in common that the center of mass of the upper body was moved anteriorly. Forces up to 1650 N were measured for these activities of daily life. However, there was a large intra- and inter-individual variation in the implant loads for the various activities depending on how exercises were performed. Measured shear forces were usually higher in the posterior direction than in the anterior direction. Activities with high resultant forces usually caused high values of other load components.
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影响因子：
2.8
作者：
Rohlmann, Antonius;Hinz, Barbara;Bergmann, Georg
通讯作者：
Bergmann, Georg
影响因子：
2.4
作者：
Rohlmann, A.;Dreischarf, M.;Bergmann, G.
通讯作者：
Bergmann, G.
DOI：
10.1007/bf02221591
发表时间：
1994-01-01
期刊：
European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society
影响因子：
--
作者：
Magerl, F;Aebi, M;Nazarian, S
通讯作者：
Nazarian, S
影响因子：
4.6
作者：
Graichen, Friedmar;Arnold, Ruediger;Bergmann, Georg
通讯作者：
Bergmann, Georg
影响因子：
3
作者：
NACHEMSON, AL
通讯作者：
NACHEMSON, AL